0
Mass (g) = Mr * Moles
If you rearrange it, you get Moles = Mass/Mr
Working with a 2dp Periodic Table you get:
Moles = 2/1.01
=1.98
There are 1.98 moles of hydrogen in 2g of H2 gas.
What else can I help you with?
How many grams of hydrogen are there in thirty grams of methane gas?
8 grams. Or more exactly, in 30.0 grams of methane there is 7.54 grams of hydrogen.
How many hydrogen atoms are in 45.0 grams of hydrogen gas?
45,0 grams of hydrogen gas have 135,5.10e23 atoms.
How many grams of carbon dioxide are present in a sample containing 80.0 moles of CO2?
80,0 moles of CO2is equal to 3 520,8 g.
How many H atoms are present in a 5.905g sample of styrene?
C6H5CH=CH2 ( looks like 8 H in molecule; let's see H atoms in given mass ) 5.905 grams C6H5CH=CH2 (1 mole C6H5CH=CH2/104.144 grams)(8 mole H/1 mole C6H5CH=CH2)(6.022 X 10^23/1 mole H) = 2.732 X 10^23 atoms of hydrogen in that mass styrene
A sample of 0.53 grams of an ore contains 5.4 percent silver How many milligrams of pure silver are in the sample?
To calculate the amount of pure silver in the sample, multiply the mass of the ore by the percentage of silver: 0.53 grams * 5.4% = 0.02862 grams of silver. To convert grams to milligrams, multiply by 1000: 0.02862 grams * 1000 = 28.62 milligrams of pure silver in the sample.
The molecular formula for hydrogen sulfide is H2S. What does the formula indicate about the composition of a 1.0-gram sample of hydrogen sulfide?
The molecular formula H2S indicates that in every molecule of hydrogen sulfide, there are 2 atoms of hydrogen and 1 atom of sulfur. Therefore, in a 1.0-gram sample of hydrogen sulfide, there would be 0.67 grams of hydrogen (2/3 of 1.0 grams) and 0.33 grams of sulfur (1/3 of 1.0 grams).
How many moles of a substance are present in a sample if the sample weighs 5 grams and the molar mass of the substance is 30 g/mol (Dalton to moles conversion)?
To find the number of moles in a sample, divide the sample's weight by the molar mass of the substance. In this case, if the sample weighs 5 grams and the molar mass is 30 g/mol, the number of moles present in the sample would be 0.167 moles.
How many hydrogen atoms are present in 3.65 grams of water?
3.65 grams of water is equal to .203 moles of H2O. This means there is also .203 moles of H2 present, or .408 grams.
How many moles of water molecules H2O are present in a 27 gram sample of water?
There are 1.5 moles of water molecules in a 27 gram sample of water. This is calculated by dividing the mass of the sample (27 grams) by the molar mass of water (18 grams/mol).
A compound is 80.0 carbon and 20.0 hydrogen by mass Assume a 100g sample of this compound How many grams of each element are in this sample?
Mass of C= 80.0 g Mass of H =20.0 g
How many GRAMS of hydrogen are present in 2.08 moles of water?
In 1 mole of water (H2O), there are 2 moles of hydrogen (H). This means that in 2.08 moles of water, there are 2.08 x 2 = 4.16 moles of hydrogen. To convert moles to grams, we use the molar mass of hydrogen: 4.16 moles x 1.01 g/mol = 4.22 grams of hydrogen.
What is the method to calculate the mass in grams of each sample?
To calculate the mass in grams of each sample, you can use a balance or scale to measure the weight of the sample. The weight measured in grams is equivalent to the mass of the sample.
What are the proper units of measurement for reporting hemoglobin and hematocrit results?
gm/dl; GRAMS of hemoglobin that are present in a DECILITER of a blood sample
Grams of Cu in a 100 g sample of unknown?
your question is incomplete or incorrectly worded You want to know how much copper is in 100 grams of an unknown sample. The unknown could be made of anything, it may not even contain copper. You should include more information in your question
How many moles of NaHCO3 are present in 3.00 g sample?
To find the moles of NaHCO3 in a 3.00 g sample, first calculate the molar mass of NaHCO3 (84.01 g/mol). Then, divide the mass of the sample by the molar mass to obtain the moles of NaHCO3. For this sample, 3.00 g / 84.01 g/mol ≈ 0.036 moles of NaHCO3 are present.
How many grams of hydrogen are there in thirty grams of methane gas?
8 grams. Or more exactly, in 30.0 grams of methane there is 7.54 grams of hydrogen.
How many grams is 56.8 grams?
a metal sample weigs 56.8 gramsHow many ounces does this sample weigh?
